#include<bits/stdc++.h>
using namespace std;
//open long long remember
#define ll long long
long long n,a[200020],cnt[200020],ans;
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        cnt[a[i]]++;
    }
    ans=-1;
    for(int i=1;i<=n;i++)
    {
        ans=max(ans,cnt[a[i]]);
    }
    cout<<ans<<endl;
    return 0;
}
